Lubricator for elevator-guides and the like.



C. SCHENCK.

LUBRICATOR FOR ELEVAIOR GUIDES AND THE LIKE.

APPLICATION FILED AUG.26 1913.

Patented Aug. 6, 1918` if I CHARLES SCHENCK, `OF CHICAGO, ILLINOIS, ASSIGNOR, BYv MESNE ASSIGNMENTS, .T0

ELEVATOR SUPPLIES COMPANY, INC., 0F HOBOKEN, NEW JERSEY, A. CORPORATION.

LUBRICATOB FOR ELEVATOR-GUIDES .AND THE LIKE.

Specification of Letters'latent.

Application mea August 2e, 1913. serial No. 786,793. i

To all whom t may concern.'

Be it known that I, CHARLES SGHENCK, a

citizen of the United States, and a resident of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Lubricators for Elevator-Guides and the like, of which the following is a full, clear, and exact description.

The invention relates to lubricators for elevator guides and the like and seeks to provide an improved construction in which the oil is fed from a'suitable receptacle by means of a wick which extends upwardly from the receptacle to a point above the oillevel thereof vand thence downwardly to a point below the same, so that the oil' is fed to the point of application by capillary attraction, aided in part by gravity.

More particularly, theA invention relatesl to lubricators for elevator guides such as heretofore devised-by me and set forth in United States Patent No. 1,020,715, dated March 19, 1912, and in which the oil is delivered by the wicks to the guide-engaging faces of a plurality of shoes. formed of fiber or other non-abrasive material and which are spring-pressed into engagement with the faces of the guide. In said prior construction, the shoes were arranged above the .oillevel of the receptacle and while eificient'in operation, it is found desirable to increase the amount of oil delivered to the guide-engaging faces of the shoes. In accordance with the present improvement, the shoes are arranged below such' oil-level and the wicks act to feed the'oil to the shoes by capillary attraction which, owing to the location of the shoes, is aided by gravity.

The invention consists in the features of improvement hereinafter set forth, illustrated in the preferred form in the accompanying drawings and more .particularly pointed out lin the appended claims.

In the drawings, Figure 1 is a view of the improved lubricator, partially in elevation and partially in section, on the line 1-1 of Fig. 3. Fig. 2 is a cross section on the line 2 2 of Fig. 4. Fig. 3 is a plan view of the lubricator with the cover removed and the elevator guide shown in section. Fig. 4-is a cross section on the line 4--4 of Fig. 2.

The receptacle 10 is preferably of U-shape, as most Aclearly-shown in Figs. 3 and 4, so

that it is adapted to extend about the elevator guide 11. The receptacle is provided with anupper oil reservoir 12,'the bottom wall of which is located some distance above the lower edges of the side walls of the receptacle so as to form a lower compartment 13. At the lbottom edge of one ofthe side walls a pair of perforated ears or lugs 14 are provided for receiving fastening screws by wh1ch the receptacle canbe secured to the guide-engaging shoe or other suitable part of the car in proper lrelation to the guide. The upper end of the oil reservoir is closed by a removable cap-plate 15 which, to prevent loss, is connected to the body of the receptacle by a chain 16. A screw 17 projects laterally' from the upper edge portion of the receptacle and extends through a bifurcated-lug 18 on thecap 15. A clamp-nut 19 threaded on the screw is provided with a conical inner end which is arranged to en-f gage a similar recess in the lug 18 to secure the cap in position.

Three shoes are arranged in the lower compartment 13'. These shoes 20'and 21 are preferably arranged to make direct contact with the facesv of the elevator guide. The shoes are mounted upon pins 22 which are fixed to and project inwardly from the side walls of the lcompartment 13. These pins are square in section and the shoes 20 and 21 are provided with similarly shaped openings so that they are held against twisting. A series of springs 23 are coiled about the pins and extend between the walls of the compartment 13 and the shoes and serve to press the same .into engagement with the guide. Preferably, as shown, the shoes are provided with recesses on their outer faces lfor receiving the ends of the springs. In the preferred form shown, the shoes are provided with flat surfaces arranged to engage the corresponding surfaces of the guide 11. The broad shoes 2O engage the side faces of the guide and the narrow shoe 21 engages its end face. The shoes 20 and 21 are preferably formed of fiber but may be formed'of soft metal or other suitable nonabrasive material which will not mar or wear the 4steel or wrought iron elevator guide.

The oil is supplied to the shoes by a series of wicks 24 which are formed of suitable textile material, such as heavy flannel or the like. These wicks lead upwardly from the oil reservoir 12 to a point above the Patented Aug 6, 1918.

oil-level thereof and thence downwardly to the shoes, and the receptacle is provided with a series of passages which lead downwardly from points above the oil-level thereof to points above and closely adjacent the shoes 20 and 21. These passages are preferably formed by a series of short pipes 25 which are fixed iii liquid-tight fashion iii the lower wall of the oil reservoir 12 at points immediately above the shoes 2O and 21. The upper ends of these pipes extend, as shown, into the upper portion of the oil reservoir well above the oil-level therein. The pipes 25 are of such size that the portions of the wicks therein are somewhat compressed so that the wicks are thereby securely held against displacement.

ln operation, the oil drawn from the resy ervoir by the wicks drops onto the upper faces of the shoes 20 and 21. Preferably, as shown, the upper faces of the shoes immediately below the lower ends of the pipes or passages 25 are provided with inclined V- shaped grooves 26 which serve to conduct the oil to the guide-engaging surfaces of the shoes. The wicks act by capillary attraction to economically feed the oil from the oil reservoir but the iiow through the downwardly extending passages 25 and the downwardly extending portion of the wicks is aided by gravity so that a niore copious lubrication is attained than in the prior construction referred to, in which the guideengagiiig shoes are arranged above the oil-- level of the receptacle. In this way, the surfaces of the elevator guide 11 are at all times thoroughly coated with lubricant. The device is efficient and extremely durable, since the wicks are not subjected to wear as in certain prior constructions, and since the shoes which engage the guides are formed of fiber or like material which cannot readily wear.

It is obvious that changes may be made in the details set forth without departure from the essentials of the invention as defined in the claims.

l claim as my invention Y 1. A lubricator for elevator guides, comprising a receptacle having an oil reservoir, a horizontally movable spring-pressed guideengagin shoe, and a wick for feeding oil by capi lary attraction extending upward from said reservoir to a point above the oil level thereof and thence downwardly to said shoe, said receptacle having a fixed horizontal guide support for said shoe and also having a fixed substantially vertical support for holding said wick in position to deliver the oil onto the upper face of said shoe.

2. A lubricator for elevator guides, comprising a receptacle having an oil reservoir and a passage therein leading downwardly from a point above the oil level thereof to a point outside of said reservoir and below the oil level, and an oil-feeding wick extending from said reservoir into the upper end of said passage.

3. A lubricator for elevator guides comprising an oil receptacle, a relatively movable, spring-pressed, guide engaging shoe of non-abrasive, non-absorbent material, said receptacle having a relatively fixed, oil feeding passage extending from a point above the oil level thereof and thence downwardly and arranged to deliver oil onto the upper face of said relatively movable, springpressed shoe and an oil wick extending from said receptacle into the upper end of said passage.

4 A lubricator for elevator guides, comprising an oil receptacle, a guide-engaging shoe of non-abrasive material arrangedbelow the oil level of said receptacle, the latter having a passage therein leading downwardly from a point above the oil level thereof to said shoe, and an oil-feeding wick extending from said receptacle into the upper end of said passage.

5. A lubricator for elevator guides adapted to be carried by the car and comprising an oil receptacle, a relatively movable, springpressed, guide engaging shoe of non-abrasive, non-absorbent material, said receptacle having a relatively fixed, oil feeding tube extending from a point above the oil vlevel thereof and thence downwardly having its lower delivery end at a point adjacent and directly above the upper face of said relatively movable, spring-pressed shoe, and an oil feeding wick extending from said receptacle into and through said tube.

6. A lubricator for elevator guides adapted to be carried by the car and comprising an oil receptacle, a relatively-movable, springpressed, guide-engaging shoe of non-abrasive material arranged below the oil level of said receptacle, the latter having a passage therein leading downwardly from a point above the oil level thereof to point above and adjacent said shoe, and an oil-feeding wick extending from said oil receptacle into and through said passage, substantially as described.

7. A lubricator for elevator guides adapted to be carried by the car and comprising a receptacle for oil, a guide-engaging shoe arranged directly below the bottom of the oil reservoir of saidy receptacle, and an oilfeeding wick extending upwardly from the oil reservoir of said receptacle to a point above the oil level thereof and thence downwardly to said shoe.

8. A lubricator for elevator guides adapted to be carried by the carand comprising an oil receptacle having an upper oil reservoir and a lower compartment, a relatively-movable, spring-pressed, guide-engaging shoe of non-abrasive material arranged in said compartment, said receptacle having a passage leading downwardly from a point above the oil level of said reservoir to a point above and adjacent said shoe, and a wick extending upwardly from said reservoir* and downwardly through said passage.

9. A lubricator for elevator guides adapted to be mounted on the car and comprising an oil receptacle, a plurality of relatively movable, spring-pressed guide engaging shoes of non-abrasive, non-absorbent material, said receptacle having a series of relatively stationary, o il feeding passages leading down# wardly from above the oil level thereof having their lower delivery ends at points directly above and adjacent the upper vfaces'of said relatively movable spring-pressed shoes and wicks leading from said receptacle into the upper ends of said passages.

10. A lubricator for elevator guides adapted to be mounted on the car and comprising an oil receptacle, a plurality of relatively-movable, spring-pressed shoes arranged below the oil level of said receptacle,

the latter having therein a corresponding number of passages leading downwardly from above the oil level thereof to said shoes, and wicks leading from said receptacle into the upper ends of said passages.

11. A lubricator for elevator guides adapted to be carried` by the car and comprising an oil receptacle, a plurality ofrelatively-movable, spring-pressed shoes of nonabrasive material arranged below the oilcontaining reservoir of said receptacle and adapted to contact with the surfaces of the guide, and oil-feeding wicks extending upwardly from said reservoir and thence downwardly to said shoes.v

l2. A lubricator for elevator guides adapted to be carried by the car and comprising an oil receptacle, a plurality of relatively-movable, spring-pressed shoes of non-abrasive material arranged below the oil-containing reservoir of said receptacle and adapted to contact with the surfaces of the guide, said reservoir having passages v extending downwardly from above the oil level thereof to points above and adjacent said shoes, and wicks extending upwardly Afrom said oil reservoir and downwardly through said passages.

13. A lubricator for elevator guides adapted to be carried by the car and comprising a U-shaped receptacle having an upper oil reservoir yand a lower compartment, three relatively-movable, springpressed shoes arranged in said compartment, and oil-feeding wicks leading upwardly from said reservoir to points above the oil level thereof and thence downwardly to said shoes, substantially as described.

14. A lubricator for elevator guides adapted to be carried by the car and comprising a U-shaped receptacle having an upper oil reservoir and a lower compartment, three relatively-movable, springpressed shoes of non-abrasive material arranged in said compartment and adapted to contact with the faces of the guide, said receptacle having passages extending downwardly from above theoil level thereof to points above and adjacent said shoes, and oil-feeding wicks leading from said reservoir into the upper ends of said passages.

15. A lubricator for elevator guides adapted to be carried by the car and comprising a U-shaped receptacle having an upper oil reservoir and a lower compartment, three relatively-movable, springpressed shoes of fiber arranged in said compartment and adapted to contact with the faces of the guide, said receptacle having ducts leading downwardlyl from above the oil level thereof to points above and adjacent said shoes, and oil-feeding wicks extending upwardly from said receptacle and downwardly through said ducts.

CHARLES SCHENCK.

Witnesses:

HARRY L. CLAPP, J. G. ANDERSON.

Gemma et thm patent may be obtained for ve canta each, by addressing the "Commissioner of @atenta 

